| 摘要 |
<p>#CMT# #/CMT# The platform has application lines (16, 17) with connections connected to respective sides of a volumetric flow control valve (11) e.g. 2-way volumetric flow control valve. An orifice plate (14) is provided in pressure lines (4, 5) between a drive machine (2) i.e. pump, and the valve. An actuating element (15) i.e. electrical coil, changes a position of the plate. A pressure sensor (18) delivers a signal to the actuating element of the plate proportional to a measured hydraulic pressure. A working machine (1) i.e. hydraulic cylinder, is connected with the drive machine. #CMT#USE : #/CMT# Lifting work platform. #CMT#ADVANTAGE : #/CMT# The platform enables quick adjusting and quick and accurate reaching of the desired operating condition of the valve even in the working machine that is connected with the associated valve via the long pressure line. The platform avoids the need for a quantity setting, enables clear pressure setting, and allows quick and direct filling of the pressure line. The platform has an accurate operation mode, and reduces a number of proportional coils. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a simplified schematic view of a hydraulic system of a lifting work platform. 1 : Working machine 2 : Drive machine 4, 5 : Pressure lines 11 : Volumetric flow control valve 14 : Orifice plate 15 : Actuating element 16, 17 : Application lines 18 : Pressure sensor.</p> |
